MODEL BKL
mit clamping
Klemmnabe
with
hubs
BACKLASH-FREE, TORSIONALLY STIFF METAL BELLOWS COUPLINGS
C
C
G
G
Self opening clamp
system optional
Features:
■ easy to mount
■ low moment of inertia
■ low cost
F
Material:
Bellows made from highly flexible, high grade
stainless steel; see below for hub material
Design:
With a single ISO 4762 radial clamping screw per hub
Self opening clamp system optional: Loosening
the clamping screw applies force to the pin,
which forces the clamp into the open position for
easy mounting and dismounting
Absolutely backlash free due to frictional clamp
connection
Ø D 2H7
Ø D 1H7
ØB
E ISO 4762
A-2
Keyway
optional
Temperature range: -30 to +100° C (-22 to +212° F)
Speeds:
Up to 10,000 rpm; in excess of 10,000 rpm with finely
balanced version (up to G = 2.5)
Ordering example
Service life:
Maintenance free with infinite life when operated
within the technical specifications
BKL / 80 / 26 / 22 / XX
Brief overloads:
Acceptable up to 1.5x the rated torque
Model
Series / Nm
Bore Ø D1 H7
Bore Ø D2 H7
Non standard e.g. stainless steel
Fit tolerance:
Overall clearance between hub and shaft 0.01-0.05 mm
Non standard applications:
Custom designs with various tolerances, keyways,
materials, dimensions, etc. available upon request
Model BKL
2
4.5
10
15
Series
e
30
60
80
150
300
500
Rated torque
(Nm)
TKN
2
4.5
10
18
30
60
80
150
300
500
Overall length
(mm)
A
30
40
44
58
68
79
92
92
109
114
Outside diameter
(mm)
B
25
32
40
49
56
66
82
82
110
123
Fit length
(mm)
C
10.5
13
13
21.5
26
28
32.5
32.5
41
42.5
Inside diameter possible
from Ø to Ø H7
(mm)
D1/2
4-12.7
6-16
6-24
8-28
10-32
14-35
16-42
19-42
24-60
35-62
M3
M4
M4
M5
M6
M8
M10
M10
M12
M16
2.3
4
4.5
8
15
40
70
85
120
200
Fastening screw ISO 4762
E
Tightening torque of the
fastening screw
(Nm)
Distance between centerlines
(mm)
F
8
11
14
17
20
23
27
27
39
41
Distance
(mm)
G
4
5
5
6.5
7.5
9.5
11
11
13
17
Jtotal
0.002
0.007
0.016
0.065
0.12
0.3
0.75
AI
AI
AI
AI
AI
AI
AL
optional steel
optional steel
optional steel
optional steel
optional steel
optional steel
optional steel
0.02
0.05
0.06
0.16
0.25
0.4
0.7
CT
1.5
7
9
23
31
72
80
0.5
1
1
1
1
1.5
2
2
2
2.5
Max.
values
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Moment of inertia
(10¯³ kgm²)
Hub material
Approximate weight
Torsional stiffness
(kg)
(10³ Nm/rad)
Axial
± (mm)
Lateral
± (mm)
Angular
± (degree)
1.8
0.8
steel
7.5
3.1 11.7
steel
optional AI
optional AI
1.7
3.8
0.75
141
1.6
360
4.9
steel
optional AI
4.9
2.1
410
1
1
1
1
1
1
1
1
1
1
Axial spring stiffness
(N/mm)
Ca
8
35
30
30
50
67
44
77
112
72
Lateral spring stiffness
(N/mm)
Cr
50
350
320
315
366
679
590
960
2940
1450
* 1 Nm = 8.85 in lbs
8
R+W
R+W Prospekt BK_USA_2011.indd 8
www.rw-america.com
22.08.11 10:56